Mary Ahern, b. 1822+/- Co. Cork>NY>MO

Hi, seeking any information about parents, siblings, birthplace, etc. for Mary Ahern.From her tombstone and census records, we place her DOB around May of 1822 or 1823 in County Cork.Her father may have been named James Ahern or may have been Thomas Ahern.Our family is divided on that.Mary came to NY from Ireland prior to 1854.She married James H. Dee in NY prior to 1854.She and James were in Albany, NY in 1854, where she gave birth to her son, Thomas.Mary may have had a sister named Catherine/Katherine/Kate. Mary and Catherine may have worked at a boarding house in NY. Mary and James migrated to Missouri aproximately 1870 and stayed there until their deaths.Catherine and her husband may have settled in Iowa and ran a boarding house.Any information would be appreciated!Thanks for reading.